# std::ranges::join_view<V>::end

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< cpp‎ | ranges‎ | join view

constexpr auto end(); | (1) | (since C++20)
constexpr auto end() const requires ranges::input_range<const V> && std::is_reference_v<ranges::range_reference_t<const V>>; | (2) | (since C++20)

Returns a sentinel or an iterator representing the end of the `join_view`.

Let `base_` be the underlying view:

1) Equivalent to

    if constexpr (ranges::forward_range<V> &&
                  std::is_reference_v<ranges::range_reference_t<V>> &&
                  ranges::forward_range<ranges::range_reference_t<V>> &&
                  ranges::common_range<V> &&
                  ranges::common_range<ranges::range_reference_t<V>>)
        return /*iterator*/</*simple-view*/<V>>{*this, ranges::end(base_)};
    else
        return /*sentinel*/</*simple-view*/<V>>{*this};

2) Equivalent to

    if constexpr (ranges::forward_range<const V> &&
                  std::is_reference_v<ranges::range_reference_t<const V>> &&
                  ranges::forward_range<ranges::range_reference_t<const V>> &&
                  ranges::common_range<const V> &&
                  ranges::common_range<ranges::range_reference_t<const V>>)
        return /*iterator*/<true>{*this, ranges::end(base_)};
    else
        return /*sentinel*/<true>{*this};

### Parameters

(none)

### Return value

1) sentinel which compares equal to the end iterator.
2) iterator to the element following the last element.

### Example

| This section is incomplete Reason: no example

### See also

begin | returns an iterator to the beginning (public member function)
ranges::end (C++20) | returns a sentinel indicating the end of a range (customization point object)

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